Two-state model for critical points and the negative slope of the melting curve
Two-state model for critical points and the negative slope of the melting curve
复制标题
临界点和熔化曲线负斜率的二态模型
DOI:
10.1103/physrevb.104.054120
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发表时间:
2021-03
影响因子:
3.7
通讯作者:
Andreas Hermann
中科院分区:
文献类型:
--
作者:
Graeme J. Ackl;Hongxiang Zong;Victor Naden Robinson;S;ro Sc;olo;Andreas Hermann
We present a thermodynamic model which explains the presence of a negative slope in the melt curve, as observed in systems as diverse as the alkali metals and molecular hydrogen at high pressure. We assume that components of the system can be in one of two well defined states - one associated with low energy, the other with low volume. The model exhibits a number of measurable features which are also observed in these systems and are therefore expected to be associated with all negative Clapeyron-slope systems: first order phase transitions, thermodynamic anomalies along Widom lines. The melt curve maximum is a feature of the model, but appears well below the pressures where the change in state occurs in the solid: the solid-solid transition is related to the melt line minimum. An example of the model fitted to the electride transition in potassium is discussed.
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影响因子:
1.6
作者:
Huaming Li;Hao Ding;Yanting Tian;Yong Li Sun;Mo Li
通讯作者:
Mo Li
影响因子:
16.6
作者:
Zong H;Wiebe H;Ackland GJ
通讯作者:
Ackland GJ
DOI:
10.1088/0022-3719/14/1/007
发表时间:
1981-01
期刊:
Journal of Physics C: Solid State Physics
影响因子:
--
作者:
S. Ohnishi;S. Sugano
通讯作者:
S. Ohnishi;S. Sugano
影响因子:
64.8
作者:
Raty, Jean-Yves;Schwegler, Eric;Bonev, Stanimir A.
通讯作者:
Bonev, Stanimir A.
影响因子:
2.3
作者:
S. Ohnishi
通讯作者:
S. Ohnishi